20166660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{563}}^1$

素因数の和:777

約数の個数: 72

約数和(自身を含む): 61588800

約数和(自身を除く): 41422140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 199, 398, 563, 597, 796, 995, 1126, 1194, 1689, 1791, 1990, 2252, 2388, 2815, 2985, 3378, 3582, 3980, 5067, 5630, 5970, 6756, 7164, 8445, 8955, 10134, 11260, 11940, 16890, 17910, 20268, 25335, 33780, 35820, 50670, 101340, 112037, 224074, 336111, 448148, 560185, 672222, 1008333, 1120370, 1344444, 1680555, 2016666, 2240740, 3361110, 4033332, 5041665, 6722220, 10083330, 20166660]

約数ペア:

[(1, 20166660), (2, 10083330), (3, 6722220), (4, 5041665), (5, 4033332), (6, 3361110), (9, 2240740), (10, 2016666), (12, 1680555), (15, 1344444), (18, 1120370), (20, 1008333), (30, 672222), (36, 560185), (45, 448148), (60, 336111), (90, 224074), (180, 112037), (199, 101340), (398, 50670), (563, 35820), (597, 33780), (796, 25335), (995, 20268), (1126, 17910), (1194, 16890), (1689, 11940), (1791, 11260), (1990, 10134), (2252, 8955), (2388, 8445), (2815, 7164), (2985, 6756), (3378, 5970), (3582, 5630), (3980, 5067)]